Geni

There are thousands of Social Networks out there. But one of them i like very much. I'm talking about geni.com. On Geni you can create your genealogical tree.
The way it's done is very cool. Geni-people define them self as "Geni is a tool for understanding and staying in touch with your family", but the way every thing work at Geni is that's what i like.

Also people that stands behind seemed to be serious to:

"Geni was founded by former executives and early employees of PayPal, Yahoo! Groups, Ebay, and Tribe. It is backed by venture capital firms Founders Fund and Charles River Ventures."

and that is very important in my opinion in case of such kind services.

One of the new features i want to tell you about, is the sharing option, that allows you sharing of parts of your tree. That is also what I'm doing here next, while i begin with a small piece of my tree - closes relatives: